With all due respect Oliver, your point of view is not new and is based on… nothing.
I have been in the business of audio and video production since 1991. I have worked on a lot of different platforms with a lot of different workflows and for many different projects of all size. I am not making an argument of authority here but I even worked not too long ago on a big budget nextflix series which set required live edit/grading capable machines and guess what? They used hackintoshs!
Back during the move between analog and digital studios, I was claiming exactly what you are claiming now. It felt reassuring but I can relate of many anecdotes where every software and hardware used in the workflow were legit and “high-end”. Everything set and calibrated by the book. Still we had so many problems that the only solution the hotline guys had to give us was to change all the machines and reinstall everything.
To the opposite I did some heavy production with experimental machines, hackintosh or custom PC without a problem and under extreme conditions.
Paying for a “high-end” or well known brand computer does not mean you are not going to be bothered. It never does.
The real question is whether you have a plan B or you know how to react when shit happens. Do you work with a workflow that encompass all kind of scenario. Can you move your work from on machine to another, is your work well backed up and copied. etc.